A. V. Vaganov


Using the method of scanning electronic microscopy (SEM), a comparative study of twelve representatives of subfamily Cryptogrammoideae S.Linds. family Pteridaceae E.D.M.Kirchn. was carried out. A comparative study of morphological characters of investigated spores has revealed characters that allow considering the relatedness of the studied species to one subfamily – Cryptogrammoideae. These characters include: spore form is roundish-triangular, lociniate in proximal-polar and distal-polar positions; spore contour is low-crenate to smooth; distal side of the spore in an equatorial position is convex; rays of laesura are straight, raised over a sporoderm surface; exosporium is clearly defined from fine-granulate to verrucate.


subfamily Cryptogrammoideae; family Pteridaceae; Cryptogramma; Llavea; Coniogramme; morphology of the spores; scanning electronic microscopy (SEM).

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Christenhusz, M.J.M., Zhang, X.-Ch., Schneider, H. (2011). A linear sequence of extant families and genera of lycophytes and ferns. Phytotaxa, 19, 7–54.

Christensen, C. (1938). Filicinae. Manual of Pteridology. The Hague: Nijhoff.

Horvat, I. (1927). Über Ursprung Gliederung und Sys-tematische Stellung der Cheilanthineen. Acta Bot. II, Zagreb, 85–123.

Kuznetzov, A.A., Vaganov, A.V., Skapcov, M.V., Erst, A.S. (2014). A comparative study of spore morphology of some Pteridoideae subfamily genera. Biosciences Biotechnology Research Asia, 11, 17–25.

Lindsay, S., Middleton, D.J. (2009). New combinations in the Ferns of Thailand. Edinburgh Journal Botany, 66(2), 358.

Liu, H.-M., Wang, L., Zhang, X.-Ch., Zeng, H. (2008). Advances in the studies of lycophytes and monilophytes with reference to systematic arrangement of families distributed in China. Journal of Systematics and Evolution (formerly Acta Phytotaxonomica Sinica), 46(6), 808–829.

Metzgar, J.S., Alverson, E.R., Chen, S., Vaganov, A.V., Ickert-Bond, S.M. (2013). Diversification and reticulation in the circumboreal fern genus Cryptogramma. Molecular Phylogenetics and Evolution, 67(3), 589–599.

Pichi-Sermolli, R.E.G. (1963). Adumbratio Florae Aethiopicae. 9. Cryptogrammaceae. Webbia, 17, 299–315.

Prantl, K. (1882). Die Farngattungen Cryptogramme und Pellaea. Separal-Abdruck aus botanischen Jahrbuchern 3, Band. 5, 403–430.

Schuettpelz, E., Pryer; K.M. (2008). Fern Phylogeny. Pp. 395–416. In T.A. Ranker and C.H. Haufler (Eds.). Biology and Evolution of Ferns and Lycophytes, Cambridge University Press, Cambridge.

Schuettpelz, E., Schneider, H., Huiet, L., Windham, M.D., Pryer, K.M. (2007). A molecular phylogeny of the fern family Pteridaceae: аssessing overall relationships and the affinities of previously unsampled genera. Molecular Phylogenetics and Evolution, 44, 1172–1185.

Smith, A.R., Kathleen, M.P., Schuettpelz, E., Korall, P., Schneider, H., Wolf, P.G. (2006). A classification for extant ferns. Taxon, 3(55), 705–731.

Zhang, G., Zhang, X., Chen, Z. (2005). Phylogeny of cryptogrammoid ferns and related taxa based on rbcL sequences. Nordic Journal of Botany, 23, 485–493

DOI: http://dx.doi.org/10.15421/2016103

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© 2017 Ukrainian Journal of Ecology. ISSN 2520-2138